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Mr. A. Brothers exhibited some portraits which he had 
taken by means of the magnesium light. He had discarded 
the use of all reflectors ; the experiments made were generally 
with three strands of wire, two flat ones bound together with 
a round one. Mr. Brothers also submitted a panoramic 
picture taken in the new revolving camera, and which was 
perfectly sharp and distinct in every part. 
Mr. Wardley presented to the Album twelve very beautiful 
photographs of scenery in Cumberland, Westmorland, &c., 
taken by the Taupenot process. 
Some photographs printed by the W othlytype process were 
exhibited and much admired. 
Mr. Joseph Sidebotham then read his Paper “ On 
Printing Transparencies for the Stereoscope and Magic 
Lantern,” in the course of which he called attention to the 
fact that we were indebted to Mr. Dancer for inventing the 
binocular camera, without which the stereoscope and its 
attendant pictures would not have been, as at present, found 
in almost every home. Mr. Dancer’s idea, that the pictures 
should be taken only at a distance of three inches apart, was 
at first ridiculed ; now, however, that distance is almost 
universally adopted. 
Early in the history of the stereoscope the French transparent 
views, on albumen, were eagerly purchased, although the 
price was very high, and was still so. 
Mr. Sidebotham hoped to prove that glass transparencies 
might be produced at a cost little over that of paper prints. 
He then described the various processes at present in use for 
producing them, pointing out the several disadvantages under 
which each process laboured. Copying in the camera has 
been used, and is still used by many with various combinations 
of lenses — some with one, some with a pair of lenses ; but. 
